Contact-oiler.



UNITED STATES Parent PETER GRAHAM MAcGREG-OR, OIF NEW' YORK, N. Y., ASSIG'NOR T0 PETER G, MACGREGGR,

' EDWARD M. DAVIDSON. AND PETER L. VJILBUR.

CONTACT-GILER.

Application tiled December 13, 1912. Serial No, 736.645. Renewed April 30, 1914. Serial No. 835.545.

' following is a specification.

This invention relatesto a device for oili ing the contact-members of an electric cir cuit closing device.

The object of the .invention is to provide a device or an attachment especially adapted for use with street car controllers for reducing the wear and friction between the contact members. I I

The object of the invention is toI provide 'a simple and eiiicient device for the purpose specified which may be readily attached to any circuit closing device or controller of standard construction.

In the drawings like parts of the several views have been given the saine reference numeral.

Figure l is a sectional plan view of a portion of'a controller showing the oiling dc.- vice attached thereto. Fig. 2 is an enlarged sectional plan view'of the device. Fig. 3 is an enlarged sectional side elevation of a portion of Fig. l.

The base of the controller is shown at 'l .and the cover at 2. The contacts 3, -1 and 5 are rotatively mounted upon the shaft (i and "operated inthe usual manner by means of u hand crank or level', not shown. The con tact finger 7 is carried by a resilient member S mounted upon a suitable support 9 v attached to the base l. llhese parts may be of any standard construction for a device of this nature and no novelty is claimed for these features. The contacts are partially inclosed by a cover 10 of insulating material which may be provided with barriers extending between the different series of contacts.

The oiling device consists of a number of blocks of absorbent material, such as felt, shown at 11, 12, and 13. It will be understood that a number of these blocks of absorbent material are provided to correspond to the number of series of contacts. lijlach of these blocks of absorbent material is positioned in and projects through openings in the cover 10 and are positioned over the sevseries of absorbent blocks eral contacts so that the inner face of the bloei; projects slightly bevond the path ol' the outer sui-,facie of the contacts.

A tubular member 1l extends through the 11, 12 and 123 and is held in a retaining member 15. which is in the formA of a channel in which the outer ends of the blocks 11, l? and 13 are held. This provides for the removal of the oiling device as a unit. The upper end of the re'- taining member 15 is preferably funnel shaped, as show n at 1G, and` con'nnunicates with the tubular member 11, providing a convenient means of supplying the oil or other lubricating material to the absorbent blocks 11, 12 ind 13.

A series of openings, such as 17, 18 and 19,-

are provided in the tubular member 1st at the point where the same passes through the absorbent blocks l1, 19 and 13. These openings decrease in size from the upper opening to the lower so that `'when the oil is poured into the receptacle 1G. i'illingthe tubular member 1l, the same will be supplied and absorbed by the blocks. .its the oii is absorbed the level ot' the saine in the 'tubular member llil'alls and. consequently, if the openings were all of the saine size, the lower block 13 would rcceiwv more oil than the upper block .l1 and either the upper block would not be sullicientliV saturated or the lower block would receive an excess amount. To insure each of the bioclrs being s` with a proper amount of oil t e cpr hugs decrease in size, as above described, thus supplying more oil to the upper bloclr during the shorter period of time that the level of the oil is high enough. to supply this block and decreasing the size of the. openings for each succeeding block, inversely in proportion to the time during which the oil. is supplied through said openings, so that each block is supplied with and absorbs substantially the same amount.

The forward edges of the blocks 11, 12 and 13 are beveled or formed at an angle so that when the same are engaged by the rotation of the contacts 3, l and 5, the blocks are at first slightly compressed, thus forcing a portion of the oil or lubricating material with which it is saturated to the outer sur-- face, from which it is then distributed over the face of the contact by the fur her move mene rnereofl it will be understood that any number or" these bioeks may be provideci, one for eeen series of contact-s.

What i. eieim is: e l. in s. de ice of the dass described, the

'ibineten with e series of movable con- .eees, of s series of absorben?l members each pesiion'ed to engage one or' seid Conte/cts, ineens for supplying e uniform amount if? of oii to seid absorbent members.

n e device of the class described, the combination with e series of movable cono e series of absorbent members each 'positioned to engage' one of seid contacts,

l5 and Ineens for supplying e uniform amount of oii sii'nnitsneousiy to said absorbent niembers. in. e device of the dass described, the

wbb-nation widi s series of movable conof e series of absorbent members eeeb 'oosirioned to engage one of said contaess, e. tubular member exaending through sbsorben rnein'vers for supplying oil fo. fn e, device of tbe dass described, the ,bi1 L'bien with o series of movabie coners, or 'e series of absorbent members eeeb e tubnisr member extending through absorbent members and provided with e series of openings for supplying oil L.

v `lereto.

` meneer Vwith a series of openings varying in size from the top to the bottom each adapted to supplyl oii to one of said absorben?J members. 7. in e. device of the class described, the

combination with s series of movable core so i more, of e` series of efbsorbel'rfJ members each positioned to engage one of? seid contestsi and Vertieoi tubular member provided with e series of openings decreasing in size from the top to the bottom each adapted to suppy oil to one or" said absorbent members.

Signed at New York city, in the county and Siret-e of New York, this iQb day of November, 1912.

PETER GRAHM MMGREGGR.

vWiblfiesses LEWIS J. DooLrrrLs, ANDREW Res. 

